It is moddable, meaning a copy can be read from the /mygames directory however the ENTIRE file has to be present because the old one won't read. This means you can't just copy-paste a snip, you need the entire file, with the 1-2 changes you made.
Before, you had to mod it in the core file because if you moved a copy into /mygames directory, it would have hundreds of strange oddities in behavior because it would read the /Steam directory file, then attempt to modify it from /mygames, which caused the game to "sometimes use this file, sometimes that file".
There are plenty of "nonmoddable" files you can mod/edit all you want but you have to leave them in the main core directory. So, I can't just copy my terrain bonus changes and release "Thadian's Modular Tiles!" to let your map spawn how mine does. Trust me, you would probably love it, if you like big maps with "much less" spots to settle however "better spots" from what is there.
Mostly, I made every terrain type give .5 essence, river give 1.5 essence, max tile yield 12, minimum tile yield to "be settle" to 7-8. This means instead of a "group" of tiles which might see 3 "good" and 12 "bad" spots, you will see a 3 scattered tiles which range from "good" to "great". This stops the AI from building terrible spots, and helps the player find good spots close to home instead of having to build halfway across the map.
